| 摘要: |
| 本研究以“暴露程度敏感性适应能力”为框架，构建了罗源湾海湾生态系统脆弱性评价指标体系，并运用模糊综合评价法对罗源湾海湾生态系统在1986～1990、2004～2006、2010～2012年三个阶段的脆弱性状况开展了定量评价，结果显示，罗源湾海湾生态系统在三个阶段均处于“中度脆弱”水平，综合评价得分逐年上升，呈现渐脆弱趋势．三个子系统的模糊评价结果表明，罗源湾海湾生态系统面临的暴露程度不断增大，其主要人为胁迫因子为滩涂围垦面积、临港工业发展和海水养殖密度；其次，罗源湾海湾生态系统的敏感性也越来越强，主要的敏感因子有海洋生物质量综合指数、浮游动物和潮间带底栖生物多样性指数和鱼卵仔稚鱼种类与密度；与此同时，适应能力则呈较好态势．研究结果可为相似区域海湾生态系统脆弱性评价提供参考． |
| 关键词: 海洋环境科学 海湾生态系统 生态系统脆弱性评价 模糊综合评价 罗源湾 |
| DOI： |
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| 基金项目:农业部2014年物种资源保护（渔业）资助项目 |
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| Assessment on the vulnerability of Luoyuan Bay ecosystem, Fujian |
| ZHONG Huiqi,BAO Shanshan,HAN Yu,YANG Lu,CHEN Mingru,YANG Shengyun,XIAO Jiamei |
| (College of Ocean and Earth Sciences. Xiamen University.Xiamen 361102, China;Zhejiang Institute of Hydraulics and Estuary, Hangzhou 310020, China;Xiaznen Ocean and Fisheries Administration. Xiamen 361105, China) |
| Abstract: |
| Based on the “ Exposure- Sensitivity- Ability to adapt" framework, the vulnerability assessment index system was established for Luoyuan Bay ecosystem. The ecosystem vulnerabilities in 3 periods ( 1986 ~ 1990, 2004 ~
2006, 2010 -2012) were studied used the fuzzy comprehensive evaluation method. The results showed that all 3
periods were in "mild-vulnerability". The scores increased in years and Luoyuan Bay ecosystem tended to be incieasingly vulnerable. The evaluate results of 3 subsystems showed that the exposure intensity of Luoyuan Bay eco-
system was increasing and the major artificial stress factors were leclamation areas , port industry developments and
aquacuhxire density. And tfie sensitivity of Luoyuan Bay ecosystem was obviously intense, the main sensitive factors
were comprehensive index of marine life quality, biological diversity indexes of zooplankton and intertidal benthic.and species and density of fish larvae and eggs. Meanwhile, the adaptive capacity of Luoyuan Bay ecosystem presented a good tendency. This research can provide a reference for the vulnerability assessment of bay ecosystem in
similar regions. |
| Key words: marine environmental science bay ecosystem ecosystem vulneiabilily assessment fuzzy comprehen-
sive evaluation method Luoyuan Bay |
